diff --git a/SDLU/CMakeLists.txt b/SDLU/CMakeLists.txt
index 370436a..68c2d14 100644
--- a/SDLU/CMakeLists.txt
+++ b/SDLU/CMakeLists.txt
@@ -6,6 +6,10 @@ add_library(${PNAME}
 
 set_property(TARGET ${PNAME} PROPERTY CXX_STANDARD 17)
 
+if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+	add_link_options(-lm)
+endif()
+
 target_include_directories(${PNAME} PRIVATE
 	${PROJECT_SOURCE_DIR}/3rdparty/SDL/include
 	${CMAKE_CURRENT_LIST_DIR}